Location: Remote
Role Summary The HCD Specialist is a critical infrastructure role responsible for the definition, maintenance, and dynamic reconfiguration of IBM System z I/O configurations. You will ensure the stability and performance of mainframe environments by managing Input/Output Definition Files (IODF) and associated hardware definitions.
Key Responsibilities
Configuration Design: Design and implement I/O configurations for z/OS environments, including processors, channels, control units, and devices.
IODF Management: Create, update, and manage Input/Output Definition Files (IODF) to reflect changes in the hardware environment.
Dynamic Reconfiguration: Plan and execute dynamic I/O configuration changes without disrupting the production mainframe environment.
Hardware Integration: Collaborate with storage, network, and hardware engineering teams to integrate new storage arrays, FICON/ESCON channels, and other peripherals into the mainframe environment.
Troubleshooting: Analyze and resolve configuration-related issues, including device allocation errors, I/O path issues, and hardware definition conflicts.
Documentation & Compliance: Maintain comprehensive documentation of system configurations and ensure all changes adhere to enterprise change management processes and security policies.
Required Skills & Qualifications
Deep z/OS Expertise: Solid understanding of z/OS architecture, I/O subsystem concepts, and IBM mainframe hardware (z/Series).
HCD Proficiency: Extensive experience using the Hardware Configuration Definition (HCD) tool and, preferably, the Hardware Configuration Manager (HCM).
Core Concepts: Practical knowledge of IODF/IOCP/IOCDS generation and management.
Troubleshooting: Strong analytical skills to diagnose and resolve complex I/O and hardware definition issues.
Collaboration: Ability to work effectively with cross-functional teams including Storage Administrators, Network Engineers, and Systems Programmers.
Certifications: IBM Certified Systems Programmer or equivalent practical experience is highly desirable.